Add new testcase in IpConfigStoreTest to cover the readIpConfiguration
usage, improve the code coverage for connectivity module.
To reduce the flakyness of test, this cl refactors DelayedDiskWriter
constructors by allowing to pass in a Dependencies instance, then
waitForIdle can be used to check if the delayed write operation
associated with the passed-in HandlerThread has completed in tests.
Bug: 234315786
Test: atest com.android.server.net.IpConfigStoreTest
Change-Id: I57c8bd02a771f1cca815252ba502cda0210d1385
As per the TODO, merge EthernetServiceTests into the larger
FrameworksNetTests suite.
Similarly to NetworkStats, NSD or IpSec tests, the tests are also marked
as "non-connectivity-module-test", where "module" actually refers to
modules being built for release (from an S-based branch) today. This is
necessary as the tests and associated code cannot build without T APIs.
Also add FrameworksNetTests to presubmit as non-connectivity-module
tests are not run in presubmit without this.
Test: TH
Merged-In: Id533cdb4ac184b963f570af299dea04754ba88e9
Change-Id: I9950fcb49fdc2217134a59e993941cbe5da0b556
Xiao Ma
commited 
Remi NGUYEN VAN
commited